DISTRIBUTION OF WEEDS IN WHEAT, MAIZE AND POTATO FIELDS OF TEHSIL GOJRA, DISTRICT TOBA TEK SINGH, PAKISTAN

An ecological study was conducted to record the distribution ofweeds in wheat, maize and potato crop fields of Tehsil Gojra, DistrictToba Tek Singh, Punjab. Sixty-seven weed species were reported fromthe study area out of which two belonging to monocot families, andtwenty seven to dicot families. Thirty-five weed species were foundonly in wheat, thirty-four in maize and twenty-four in potato cropfields while twenty-four weed species found common either in case ofwheat-maize, maize-potato or wheat-potato combinations. Only twoweed species were common in all three crops, i.e. Convolvulusarvensis L. and Cynodon dactylon (L.) Pers. having importance value(I.V) of 53.58 and 57.13 respectively.